how to use reuse alv block display with header

Hi All,

               can use reuse_alv_block_display with header or top of page.

I display two alv grids in a single screen. so i use alv block display. I wan't to use the either single header or two headers for the alv lists.

I use the headers in the alv_grid_display. Now i want to display the header in alv_block_display.